POSEIDON Input Files

This repository contains the input files required by the POSEIDON atmospheric retrieval code. The input files consist of molecular, atomic, and ionic cross sections, Mie scattering aerosol properties, model grids of stellar spectra, and a chemical equilibrium grid. See the installation instructions for the next steps after the download is complete. v1.2 Added a Mie scattering database of aerosol optical properties. Updated POSEIDON gas-phase opacity database. Both databases are described on a new documentation page: POSEIDON Opacity Database. v1.1 Added a chemical equilibrium grid computed with Fastchem 2. New, simplified, input file structure used by POSEIDON v1.1. One download, easier installation.